Radiator



Patented Nov. 19,1929V ,UNIrEo s.TATi;sfJafAl{llNT OFI-Ica NORMAN WALKER, -Or IOOKPORT, NRW KORK, AssIeNOR TO'R'ARRISON RADIATOR CORPORATION, `or IocKrORT, NEW YORK, A GORPORATION'OI1 NRW YORK RADIATOR Application mea October 1e, 1925. serial No. 81,5330.'l

This, invention relates to radiators and comprises all the features of lnovelty herein' disclosed as embodied in an,automobile radiator construction. f

5 An Object of the invention is to provide an improved radiator of great cooling efficiency. Another object is to provide an improved ra diator wherein the cooling effect of the front and the rear of the radiator is substantially equalized.

To these ends and al to improve generally upon devices of the c aracter indicated my invention consists in the various matters hereinafter described and claimed. I In the drawings, Figure 1 isa perspective view of alportion of a radiator unit.

Figure 2 is a vertical section of a of a radiator near the front.

Figure '3 is a vertical section of a 2o a radiator near the rear and j Figure 4 is a front view of a portion of the radiator. Y.

The numerals 10 and 12 indicate 4corrugated sheet metalplates opposed to one zanother in pairs to vform interposed water portion portion-of passages 14. The plates 10 and 12 have foldedv fins 16 and 18, respectively, projecting away from thewater passages in stag ered'relation, Athese fins forming portions o? the walls lof connected air cells `or passages 20 which extend from front to rear transversely of the water passages. A division plate 22 is inserted between each pairfof water' passages and, as herein shown, comprises a generally zigzag plate the ridges of which meet the staggered ns 16 and 18. At intervals, portions 'of the division' plate are struck up from opposite sides `to form series of ridges 24 which form between them locatingl seats 26 for the folded fins.. Striking up t e ridges,

c of course, leaves perforated portions vin the division plate so that air agitated by the ridges or Otherwise can pass from one side of the division plate to the other.

The plates 10 and 12 have front and rear rows of end projections in the form ofridges 28 and 30, respectively, arranged in staggered relation on opposed plates so that the ridges of one plate enter the reentrant angles formed by the ridges of the other plate where they are cured, as by soldering. Preferably, a central row ofrldges 32 may beformed on'each plate to formvspacing' and stifening means between front and rear waterv passages. Between the rows of ridges, the plates lO'and 12 have front and rear rows of parallel corrugationsomcoolin'g ribs 34v and 36, respectively, each rib being adjacent to a folded tin and joined by a substantiallytlat plate portion 38 to the next folded fin. The front and rear rows of corrugations are preferably arranged unsymmetrically `with respect to a central vertical plane 'so that each late 10 and 12 has two rows of coolin ribs or listers,- each ribextending horizonta ly substantially through one half ofthe length of each air passage, a cooling rib or blister. 36 at the rear of the radiator being in alignment with a flattened portion 38 at the front and4 vice-versa. ThisI staggered, or out o fv alignment relation, of front and rear ribs produces a greater cooling eliciency at the rear' of the radiator.

. For instance, in the usual radiator, cool air enters the air passages and extracts heat Afrom the Water at the front and as it immediately becomes considerably heated, it has little ca pability of extracting-heat from the rear. In

the present radiator, cool air is able .to pass comparatively quickly over a flattened area 38 at the front without extracting the maximum amount of heat and in this compara-l tively cool condition it engages a coolin rib 34 at the rear and extracts considerable eat.

The coolin ribs are also unsymmetrically arranged wit respect to the folded lins'so that the resulting depressions in the water passages substantiallyoppo'se one another to form pockets 4 0 of larger water capacity than the connecting passages. -Hence the iow of water is retarded and the time that the water is in contact with the cooling ribs is increased. The corrugations or ribs increase the cooling area and strengthen the walls andthe air currear. staggered relation of the ribs.. Plates 10 and 12 may be separate platesor, as indicated in Figure 1, one plate 10 may be interents are broken up better by the front-to- Although the invention has been disclosed by reference to a certain specific construction, it should be understood that, in its broader aspects, the invention is not necessarily lirnited to the form selected for mere lllustratlve purposes,

1. A radiator structure eomprlsing opposed plates forming an interposed' water passage, the plates having folded oppositely projecting staggered fins defining walls of air passages and the portions ot each plate connecting the fins having a plurality of rolws of corrugations and end ridges with an intermediate row of'ridges separating the rows ot corrugations and spacing the plates, the ridges of the opposed plates being staggered and interitting with one another, and the corrugations forming convex cooling ribs of large area extending lengthwise of and staggered in the direction of the air passages 3 substantially as described. j

2. A. radiator structure comprising opposed plates orining an interposed water passage, the plates having folded oppositely projecting staggered tins defining wallsotl air passages and the portions of each plate connecting the fins having a plurality of rows of parallel corrugations and end projections, the corrugations of each plate being unsymmetrically arranged with respect to axes extending longitudinally of the air passages whereby convex cooling ribs extend lengthwise'of the air passages in staggered relation; substantially as described.

3. A radiator structure comprising opposed plates forming an interposed water passage, each plate havinga plurality of rows of transversely extending corrugations and end ridges, the end ridges of the opposed plates being staggered and interlitting with one another, the corrugations of each plate being unsymmetrically arranged with respect to transversely extending axes to form staggered cooling ribs which extend transversely of the water passage on the exterior thereof; substantially as described.

el. A radiator structure comprising opposed plates orming an interposed water passage, the plates having oppositely projecting staggered fins defining walls of air passages and the portions of each plate con-x necting the fins having a plurality of rows of corrugations and end ridges with intermediate ridges between the rows of corrugations, one row of corrugations of eachplatebeing unsymmetrically arranged with respect to the corrugations of the other row, the corrugations thereby forming staggered cooling ribs extending lengthwise of the air passages, said ribs on each plate also being arranged unsymmetrically with respect to the tins whereby the resulting depressions in the water passages substantially oppose one another to form pockets of larger capacity than the connecting passages; substantially as described.

5. A radiator spaced pairs of corrugated plates united at their front and rear edges, the plates of each pair being separated from Aone another between said edges to form vertical water passages, the spaces between adjacent pairs of plates forming horizontal air passages extending transversely of the water passages, and the corrugations of the rOnt portions of the plates being out ot' horizontal alignment with the corrugations of the rear portions of the plates to equalize the cooling etticiency of the front and rear of the radiator; substantially as described. l

G. A raditor structure comprising opposed plates forming an interposed water passage, the plates having folded oppositely projecting staggered fins delining walls of air passages and the portions of each plate connecting the tins having a plurality of rows of corrugations and end ridges, the end ridges of the opposed plates being staggeredand interitting with one another, and the corrugations forming convex cooling ribs of large area extending lengthwise of and st-aggered in the direction of the air passages; substantially as described.

7. A radiator structure comprising water tubes 'formed by sheets of corrugated metal soldered along their lateral edge portions, each sheet of metal having corrugations in slightly offset relation to the corrugations in the adjacent sheet whereby pairs of corrugations form enlargements in a water tube at van angle thereto.

8. In a radiator structure, a water tube having corrugated walls forming enlarged and contracted tube portions, the enlarged portions being disposed at a downwardly inclined angle to the tube whereby the direction of water iiow is changed.

9. In a radiator structure, a water tube having corrugated walls forming enlarged and contracted tube portions, the enlarged portions being disposed at a downwardly inclined angle to the tube whereby the direction of'water flow is changed and cooling fins on the said enlarged portions.

In testimony whereof I hereunto aiiix my signature.` j

NORMAN WALKER.

construction comprising 

